Clutch and brake mechanism



p 1936- G. F. YAGER CLUTCH AND BRAKE MECHANISM Original Filed Dec. 15,1930 4 Sheets-Sheet 1 Sept. 29, 1936. G. F. YAGER 2,055,887

CLUTCH AND BRAKE MECHANISM Original Filed Dec. 15, 1930 4 Shets-Sheet 252 Ei- 7K SYWMVWO Sept. 29, 1936. F. YAG'ER 7 2,055,887

CLUTCH AND BRAKE MECHANISM I Original Filed Dec. 15, 1930 4 Sheets-Sheet3 (2607 ail a 7 er Sept. 29, l936. G. F. YAGER 7 CLUTCH AND BRAKEMECHANISM Original Filed Dec. 15, 1930 4 Sheets-Sheet 4 Patented Sept.29, 1936 PAT EN T" OF Fl CE CLUTCH AND BRAKE MECHANISM George F. Yager;Toledo, Ohio; assignor to The Bunting Brass & Bronze Company; Toledo,Ohio, a corporation of Ohio Original application December- 15; 1930,Serial No. 502,526, Patent No. 1,962,674. Divided and this applicationJuly 3, 1933; Serial No; 678 978 7' Claims.

Thisinvention relates generally to an improved clutch and brakemechanism and constitutes a division of my application, Serial No.502,526 filedsponsive tothe operation of the clutch actuating.

means to disengage the clutch and substantially 1'5 instantaneouslyarrest movement of the driven shaft;

The foregoing, as well as other objects, will be made more apparent asthis des'cription'pro-' ceeds, especially when considered in connection20 with: the accompanying drawings, wherein:

' Figure 1- is a topplan viewof a machine embodying a clutch and" brakemechanism constructed in accordance with this invention;

Figure 2 is an enlarged fragmentary plan view having certain partsbroken away to show the clutch mechanism in detail;

Figure 3 is a rear elevational view of the machine shown-in Figure 1;

-Fi'gure 4 is a side elevational view of the maohine shown in Figure 1 aFigure 5 is a sectional view taken substan tially on the plane indicatedby the line 5--5- of Figure 2; and

Figure 6 is afragmentary sectional viewof 3'5 the clutch mechanismshowing the same in' its inoperative position.

Referring now more in detail to the drawings; it will be noted thatthere is illustrated in Figure 2; a drive shaft 16 having one endportionjour- 40 nalled in a bearing 1| fixed' in any suitable manner to themachine frame A and having the opposite end portion journalled" in theinner end of'a driven shaft 11, also supported on themachine frame A bya bearing H. The driven 45 shaft is operatively connectedto-a-powertake-' ofigear l3 by means of a? pinion-12' fixed-onthe'driven shaft 11 in mesh with-the power take-off gear. is secured to theextreme outer end-'of the driven 50 shaft and this inertia wheelcooperates withacorresponding wheel 15' fixed to the end-'of-thedrive-shaft 16 beyond the bearing'll' to balance thetwo shafts whencoupled together.

In the present instance, the drive shaft 16: isadapted to be operativelyconnected' tothe In addition, a suitable inertia wheel 15" driven shaftby asuitable clutch 18 adaptedto be manually controlled from a-pointintermediate the ends of the machine by' anoperating lever 1:9; shown inFigure 4": ofthe: drawings. The H clutch. 18' selected herein: for thepurpose of 5' illustration is of the Twyncone type having twocooperating: cones 18 and I81.v The cone 18 is splined upon a. sleeve18* fixed to the drive shaft 16 for sliding movement in the direction Nof theaxisLofJt-he drivershaftand: the'cooperati'ng opposed cone 18 i'sfixed upon the sleeve 18 Interposed between the conical surfaces ofithe. two: cones: is a ring 18 having the opposite sides adjacent; thecones inclined at an angle correu sponding to the inclination of theconesurfaces for engagement thereby and having the peripheral portionthereof splined on: the inner surfaceof an: axially extending flange94;" of the drum 9'4 for: sliding movement-axially of th'e drive shaft16$ The drum 94 is keyed to the inner end of the driven shaft H forrotation therewith: as a unit and since the ring 18 is splined to-thedrum; it necessarily follows that the: ringwill: alsorotateas a unitwith the driven shaftL With. the construction: thus far described;itwill be noted'th'at sliding movement oflthe cone laiinadirectionltoward the cooperat ing: cone 181 causes the conical surfaceof the cone' 18 to: frictionally' engage the adjacent; inelined surfaceof the link 18 and eifect's' 3 3 movement of this ring axially of thedrum- 9 1 to engage the opposite inclined surface of the ring into:frictional: engagement with the conical surfacezo'ii the cone: I 8Inasmuchw as ibothkc'ones aresfixeditoithe drivershaft 16 forrotationmhere' With;.aIId1iIIlVieW-' ofithe fact that the ring; 18!"isiseoureditothe driven shaft for rotation there=-- with; itinecessarilyfollows that movement of the cone 18* in the aforesaid: directionoperatively" connects thedriven'shaft 11 to-thedrive'shaft' 16.

In accordance with the present invention,- the cone "I8 is shifted;-axially of the drive a shaft- W to accomplish the above function bymeans i of a sleeve 18 splinedf upon th'edrive shaft-T6 and having theinner end operatively connected to 41$" the cone [8 through the mediumof'linkage18 In the=presentinstance,' the cone '18 is connected atdi'ametrioa'lly opposite sides to the sleeve 18* through the mediumof'linkage 18 but since both systems oflinkage are identical in con-'struction'; only one will be described in detail herein? Upon referencetoFigure' 2; it willbe noted thatthe linkage comprises a bell cranklever" 18 pivotally supported intermediate its 4 endsiiom a stop! fl'-thr'ead'edly mounted on the 555-:

Y the machine frame.

inner end of the sleeve 18*. It may be stated at this point that thestop I8 functions to limit the extent of movement of the sleeve 78 fromthe inoperative position thereof shown in Figure 6 to the operativeposition of the same illustrated in Fi ure 2.

The inner end of the bell crank I8 is connected to the cone 18 by meansof a link I8 while the outer end of the bell crank lever I8 is pivotallyconnected to the inner end of the sleeve I8 by means of a link I8Assuming that the driven shaft I1 is clutched to the drive shaft IE or,in other words, assuming that the parts are in the positions thereofshown in Figure 2, it will be noted that movement of the sleeve 18 in anoutward direction upon the shaft I6 effects a rocking movement of thebell crank I8 through the link l8 in a clockwise direction and in sodoing, causes the cone I8 to move in a direction away from the ring"I8". When the clutch I8 has been released in the above manner, theseveral parts of the mechanism assume the positions thereof shown inFigure 6 wherein it will be noted that inward movement of the sleeve I8to the extent required to engage the inner end of the same with the stop18 causes the bell crank I8 to rock in the opposite direction about itspivotal support to the extent required to re-engage the clutch sections.

As previously stated, manipulation of the operating lever I9 controlsthe operation of the clutch I8 and in the present instance, this leveris connected to the sleeve I8 by means of a rock shaft 80 suitablyjournalled on the side of The connection between the rock shaft 80 andthe sleeve 18 comprises a link 82 having one end fixed to the rock shaftand having the other end connected to the arm 84 of a bell crank lever85 by means of a link 83. The extremity ofthe arm 81 of the bell cranklever 85 engages within a suitable slot 88 formed in a shaft 89 mountedfor reciprocation on the machine frame. shifter yoke 90 having the freeend thereof engaging within an annular recess formed in the outer end ofthe sleeve 18 Thus, it will be apparent that rocking movement of theshaft 80 in one direction by the operating lever I9 effects a movementof the clutch operating sleeve 78 inwardly to actuate the clutch andmovement of the lever I9 in the opposite direction causes the sleeve 18to release the clutch.

In order that the machine will come to an,

immediate rest upon the connection between the shaft sections I6 and 11being broken by the clutch I8, I have provided a suitable brakemechanism designated generally by the reference character J. Preferablythis mechanism comprises a pair of brake shoes 92 and 93 respectivelyengageable with diametrically opposite sides of the clutch drum orhousing 94. Pivotally connected to the shoes 92 and 93 is a pair oflevers 95 and 96 respectively having the free ends thereof pivotallyconnected to suitable toggle links 91 and 98 and fulcrumed intermediatethe ends thereof upon pins 99 and I respectively carried by a suitablebracket IOI rigid with the machine frame. The free ends of the togglelinks 9! and 98 are pivotally connected to an equalizing link I02 whichin turn is connected to one arm of a bell crank lever I03 pivotallyconnected upon the link. The free arm I04 of the bell crank I03 engageswithin a suitable slot or opening I formed in the reciprocable shaft 89and the construction is such that axial Secured to the shaft 89 is amovement of the shaft to disconnect the clutch from the prime moverrocks the bell crank lever I03 in a direction to straighten the togglelinks 9! and 98 and thereby rock the free ends of the actuating levers95 and 96 downwardly causing the shoes 92 and 93 to grip the drum orhousing 94 and thereby arrest the section II and stop the machine. Whenthe clutch mechanism is manipulated to engage the clutch and establish adriving connection between the sections I6 and II the bell crank leverI03 is rotated in an opposite direction to rock the free ends of thelevers 95 and 98 outwardly away from the drum 94 and thereby disengagethe shoes 92 and 93 from the drum.

Thus from the foregoing it will be apparent that I have provided a brakemechanism for the machine which is automatically controlled and renderedeffective or ineffective by the manipulation of the clutch I8.

While it is believed that from the foregoing description the nature andadvantages of the invention will be readily apparent, I desire to haveit understood that I do not limit myself to what is herein shown anddescribed and that such changes may be resorted to when desired as fallwithin the scope of what is claimed.

What I claim as my invention is:

1. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts,actuating means for the clutch including a movable part having slotstherein at spaced points thereof, an operating lever, a connectionbetween said lever and part including a member engaging one of saidslots, a drum on the driven shaft, a brake shoe engaging with the drum,and actuating means for the shoe including a member engaging the otherof said slots.

2. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts, andactuating means for the clutch including a reciprocating shaft having aslot therein, a shifter yoke rigid with said reciprocating shaft andengaging said clutch, a pivotally mounted bell crank lever having an armengaging the slot in said reciprocating shaft, 9. rockshaft, means forrocking said shaft, a lever carried by said rockshaft, and a linkterminally connected to the last mentioned lever and to an arm of thebell crank lever.

3. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts,actuating means for the clutch including a reciprocating shaft havingspaced slots therein, a shifter yoke rigid with said reciprocating shaftand engaging said clutch, and a pivotally mounted lever engaging one ofthe slots in said reciprocating shaft, and means operable for arrestingthe movement of the driven shaft when the connection aforesaid isbroken, including a brake drum upon the driven shaft, a brake shoeengageable with said drum, a lever connected to said shoe, a leverengaging the other slot in the reciprocating shaft, and linkageconnecting the last two mentioned levers.

4. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts,actuating means for the clutch including a reciprocating shaft havingspaced slots therein, a shifter yoke rigid with said reciprocating shaftand engaging said clutch, and a pivotally mounted lever engaging one ofthe slots in said reciprocating shaft, and means operable for arrestingthe movement of the driven shaft when the connection aforesaid isbroken, including a brake drum fixed upon the driven shaft, brake shoesengageable with said drum at substantially diametrically opposite pointsthereof, levers connected to said shoes, and equalizing link, linksterminally connected to said last mentioned lever and equalizing link,and a bell cranklever having an arm connected to the equalizing link andhaving an arm engaging the other slot in the reciprocating shaft.

5. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts,actuating means for the clutch including a. reciprocating shaft, ashifter yoke rigid with said reciprocating shaft and engaging saidclutch, and a pivotally mounted lever engaging said reciprocating shaft,and means operable automatically for arresting the movement of thedriven shaft when the connection aforesaid is broken, including a brakedrum upon the driven shaft, a brake shoe engageable with said drum, alever connected to said shoe, a lever engaging the reciprocating shaft,and linkage connecting the last two mentioned levers.

6. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts,actuating means for the clutch including a reciprocating shaft, ashifter yoke rigid with said reciprocating shaft and engaging saidclutch, and a pivotally mounted lever engaging said reciprocating shaft,and means operable automatically for arresting the movement of thedriven shaft when the connection aforesaid is broken, including a brakedrum fixed upon the driven shaft, brake shoes engageable with said drumat substantially diametrically opposite points thereof, levers connectedto said shoes, an equalizing link, links terminally connected to saidlast mentioned lever and equalizing link, and a bell crank lever havingan arm connected to the equalizing link and having an arm engaging thereciprocating shaft. I

7. In a machine of the class described, a drive shaft, a driven shaft, aclutch for making and breaking a connection between said shafts,actuating means for the clutch including a reciprocating part, anoperating lever, a connection between said lever and part including amember engaging said reciprocating part, a drum on the driven shaft, abrake shoe engageable with said drum, and actuating means for the shoeincluding a member also engageable with said reciprocating part.

GEORGE F. YAGER.

